1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<html>
3
4<head>
5<META http-equiv="Content-Type" content="text/html; charset=windows-1252">
6<META name="GENERATOR" content="IBM WebSphere Studio Homepage Builder Version 8.0.0.0 for Windows">
7<META http-equiv="Content-Style-Type" content="text/css">
8<title>TP_CalcCalibrateParam</title>
9<LINK rel="stylesheet" href="../../css/nitro.css" type="text/css">
10</head>
11
12<body>
13
14<h1 align="left">TP_CalcCalibrateParam <img src="../../image/NTR.gif"><img src="../../image/TWL.gif"></h1>
15<h2>Syntax</h2>
16
17<dl>
18  <dd>
19<CODE>#include &lt;nitro/spi.h&gt;</CODE><BR>
20  <PRE><CODE>u32 TP_CalcCalibrateParam( TPCalibrateParam * calibrate,
21                                u16 raw_x1, u16 raw_y1,
22                                u16 dx1,   u16 dy1,
23                                u16 raw_x2, u16 raw_y2,
24                                u16 dx2,   u16 dy2 );</CODE></PRE>
25  </dd>
26</dl><h2>Arguments</h2>
27<TABLE border="1" width="100%">
28  <TBODY>
29    <TR>
30      <TD width="300"><em><strong><font face="Courier New">calibrate</font></strong></em></TD>
31      <TD width="700">Pointer used for storing the results of the calibration parameters</TD>
32    </TR>
33    <TR>
34      <TD><em><strong><font face="Courier New">raw_x1,  raw_y1</font></strong></em></TD>
35      <TD>Raw touch panel values acquired at coordinate 1 (0 &ndash; 4095)</TD>
36    </TR>
37    <TR>
38      <TD><em><strong><font face="Courier New">dx1,  dy1</font></strong></em></TD>
39      <TD>Screen coordinates for coordinate 1 </TD>
40    </TR>
41    <TR>
42      <TD><em><strong><font face="Courier New">raw_x2, raw_y2</font></strong></em></TD>
43      <TD>Raw touch panel values acquired at coordinate 2 (0 &ndash; 4095)</TD>
44    </TR>
45    <TR>
46      <TD><em><strong><font face="Courier New">dx2, dy2</font></strong></em></TD>
47      <TD>Screen coordinates for coordinate 2</TD>
48    </TR>
49  </TBODY>
50</TABLE>
51<h2>Return Values</h2>
52<p>If the arguments are valid parameters, returns 0. If they are not valid parameters, it returns a non-zero value.</p>
53<H2>Description</H2>
54<P>This function calculates calibration parameters that are based on coordinates of two points.</P>
55<P>Do not use the same x or y values as parameters for coordinates 1 and 2.</P>
56<h2>See Also</h2>
57<P><CODE><A href="TP_GetCalibratedPoint.html">TP_GetCalibratedPoint</A>, <A href="TP_SetCalibrateParam.html">TP_SetCalibrateParam</A></CODE></P>
58<H2>Revision History</H2>
59<P>2004/04/16 Initial version.</P>
60<hr><p>CONFIDENTIAL</p></body>
61</html>
62